2 * QEMU ETRAX System Emulator
4 * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
31 #define RW_TR_DMA_EN 0x04
33 #define RW_STAT_DIN 0x20
34 #define R_STAT_DIN 0x24
36 static uint32_t ser_readb (void *opaque, target_phys_addr_t addr)
38 D(CPUState *env = opaque);
39 D(printf ("%s %x pc=%x\n", __func__, addr, env->pc));
42 static uint32_t ser_readw (void *opaque, target_phys_addr_t addr)
44 D(CPUState *env = opaque);
45 D(printf ("%s %x pc=%x\n", __func__, addr, env->pc));
49 static uint32_t ser_readl (void *opaque, target_phys_addr_t addr)
51 D(CPUState *env = opaque);
59 r |= 1 << 24; /* set tr_rdy. */
60 r |= 1 << 22; /* set tr_idle. */
64 D(printf ("%s %x p=%x\n", __func__, addr, env->pc));
71 ser_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
73 D(CPUState *env = opaque);
74 D(printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc));
77 ser_writew (void *opaque, target_phys_addr_t addr, uint32_t value)
79 D(CPUState *env = opaque);
80 D(printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc));
83 ser_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
85 D(CPUState *env = opaque);
92 if (isprint(value) || isspace(value))
99 D(printf ("%s %x %x pc=%x\n",
100 __func__, addr, value, env->pc));
105 static CPUReadMemoryFunc *ser_read[] = {
111 static CPUWriteMemoryFunc *ser_write[] = {
117 void etraxfs_ser_init(CPUState *env, qemu_irq *irqs, target_phys_addr_t base)
120 ser_regs = cpu_register_io_memory(0, ser_read, ser_write, env);
121 cpu_register_physical_memory (base, 0x3c, ser_regs);